I haven't heard of any orders for copper being cancelled yet, the price just keeps dropping because of speculation based on chinese statistics. The chinese have been known to manipulate prices by stockpiling before, and well their philosephy seems to be based on telling the world what they want them too know, rather than provide accurate information but this can't go on forever.
The prices dropping will surely knock out a few speculative explorers and slow production down a little but PNA can service their debt and remain solvent on the silver and gold alone. Once they get through this, if china is really keeping the facts from the rest of the world to pickup some bargain resources, the shortage caused by closures and slowdown in production will have a slingshot effect to resource prices. (China won't be worried, they will be stocked up again, and ready repeat their cycle all over again).
Although please keep doing your work Diedre, I am hoping to pickup another bundall at 20c while I still can. IMO this will be $1+ within 12 months.
PNA Price at posting:
23.7¢ Sentiment: Hold Disclosure: Held